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Osmolality Calculator – Serum Osmolality

Calculate serum osmolality from laboratory values

Calculate Osmolality
mEq/L
mg/dL
mg/dL

How to Use

  1. Enter sodium level in mEq/L
  2. Enter glucose level in mg/dL
  3. Enter urea level in mg/dL
  4. Click calculate

Understanding Osmolality

Osmolality measures the concentration of particles in a solution. Serum osmolality helps diagnose metabolic disorders, dehydration, and electrolyte imbalances.

Normal Range

Normal serum osmolality: 275-295 mOsm/kg. Higher values suggest dehydration or hyperglycemia. Lower values may indicate overhydration.

Frequently Asked Questions

What is normal osmolality?
Normal serum osmolality ranges from 275 to 295 mOsm/kg. Values outside this range may indicate medical conditions requiring attention.

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